Frequency control technology has been widely used in low voltage asynchronous motors. In the application of high-voltage (3kV and above) motors, although the technology tends to be mature, the cost is high and limited. Therefore, the investment analysis was first carried out, and combined w

BYD (002594.SZ, 01011.HK) is accelerating the pace of going global and constantly expanding the territory of new energy vehicles at home and abroad. In addition to the proposed construction of an automaker in Saudi Arabia, the construction of a plant in Brazil is also being implemented. According

From 2011 to 2012, flowmeter shopping malls rebounded strongly and achieved good results with double-digit increases. The sale of the chief flowmeter skills will continue to rise rapidly, driven by increased business in chemical and energy occupations. In the coming years, the energy profession will

Due to the high humidity of the air, a layer of water film is formed on the brake track of the wheel or decelerator, which causes the friction coefficient to decrease when the retarder is braked. As the wheel thickness is smaller than the standard wheel minimum, the actual opening size of the red

On July 11, the 11th Changchun Automobile Expo opened. China's largest commercial vehicle company, Foton Motor Co., Ltd., takes the theme of “breakthrough technology and lead the future” as the theme of the exhibition, exhibiting 11 models of vehicle and power products including MP

The laboratory has developed real vegetarian cheese. This is a contradiction, but it may not last long. A group of scientists think they think they can make cheese free of milk. Even better, the taste of vegetarian cheese is appropriate, not the w

As far as China's current level of automation is concerned, it is not difficult to solve the control problem in drying equipment, but the lack of a reasonable combination of automatic control technology and drying equipment. As we all know, each drying equipment has its specific scope of appl

Prior to the opening of the market in China for the past 30 years, the integrity of the automobile industry has activated the cells of the automobile industry, forming the atmospheric field and pattern of the world's largest market today. Since last year, the decline in the share of self-owned

Ruifeng Optoelectronics held a joint new product launch conference in Guangzhou today. According to Gong Weibin, Chairman of Ruifeng Optoelectronics, Ruifeng and Puri have had strategic contacts two years ago. This cooperation has launched the brand Prefun, which is responsible for production, manuf

Kitchen cabinets are the closest place to soot, and with the long-term baking of the fire, deformation is inevitable. Pay special attention to the humidity around the cabinets. The bacteria prefers a warm and humid environment. In closed cabinets and dark corners, bacteria such as Staphylococcus, Es

Not long ago, Yutong Bus officially joined the Technical Innovation Strategic Alliance of China's Fuel Cell Vehicle Industry (referred to as the Alliance), and cooperated with other units of the Alliance to carry out collaborative research and independent technological innovation, and strived

In June, Shanghai's Shanghai-based Shanghai-based license car was 28,535 vehicles, a month-on-month increase of 25.08%, a slight decrease of 5.58% year-on-year; in the first half of the year, Shanghai-based cars were 166,431 vehicles, down 4.52% year-on-year. By the end of June this year, the n